Amy Cash - Pipes - JS Scrabble

scrabble.js

@@ -1,14 +1,133 @@
+function UserException(message) {
+  this.message = message;
+  this.name = 'UserException'
+};
+
+const letterPoints = {
+  A: 1, B: 3, C: 3, D: 2, E: 1, F: 4, G: 2, H: 4, I: 1, J: 8, K: 5, L: 1, M: 3, N: 1, O: 1, P: 3, Q: 10, R: 1, S: 1, T: 1, U: 1, V: 4, W: 4, X: 8, Y: 4, Z: 10
+};
+
 const Scrabble = {
   score: function(word) {
-    // TODO: implement score
-  }
 
-  // TODO: add the highestScoreFrom method
+    if(word.length > 7) {
+      throw new UserException("Word is Too Long");
+    } else if (word.length === 0) {
+      throw new UserException("You must enter a word to be scored");
+    } else if (word.match(/[^a-z]+/i)) {
+      throw new UserException("Word can only contain letters");
+    }
+
+    let total = 0;
+
+    word = word.toUpperCase();
+
+    for(let i = 0; i < word.length; i++){
+      total += letterPoints[word[i]];
+    }
+
+    if(word.length === 7){
+      total += 50;
+    }
+
+    return total;
+
+  },
+
+  tieBreak: function(a, b) {
+    if(a.length === 7){
+      return a;
+    } else if(b.length === 7){
+      return b;
+    } else if(a.length > b.length) {
+      return b;
+    } else {
+      return a;
+    }
+  },
+
+  highestScoreFrom: function(words) {
+
+    if(words.length === 0) {
+      throw new UserException("Array is Empty");
+    } else if (typeof words != 'object') {
+      throw new UserException("You must enter an array");
+    }
+
+    if(words.length === 1) {
+      return words[0];
+    } else if(words.length >= 2) {
+
+      let highestScoringWord = "";
+      let highestScore = 0;
 
+      words.forEach(function (word) {
+
+        if(Scrabble.score(word) > highestScore){
+          highestScoringWord = word;
+          highestScore = Scrabble.score(word);
+        }
+        else if (Scrabble.score(word) === highestScore) {
+          highestScoringWord = Scrabble.tieBreak(highestScoringWord, word);
+        }
+      });
+      return highestScoringWord;
+    }
+  }
 };
 
-Scrabble.Player = class {
-  // TODO: implement the Player class
+
+Scrabble.Player = class  {
+  constructor(name) {
+    if(name === undefined){
+      throw new UserException("Must Include a Name");
+    }
+    this.name = name;
+    this.plays = [];
+  }
+
+  totalScore() {
+    let playerScore = 0;
+    this.plays.forEach(function (word) {
+      playerScore += Scrabble.score(word);
+    });
+    return playerScore;
+  }
+
+  hasWon() {
+    let score = this.totalScore();
+    if(score >= 100) {
+      return true;
+    } else {
+      return false;
+    }
+  }
+
+  play(word) {
+    if(word.length > 7) {
+      throw new UserException("Word is Too Long");
+    } else if (word.length === 0) {
+      throw new UserException("You must enter a word");
+    } else if (word.match(/[^a-z]+/i)) {
+      throw new UserException("Word can only contain letters");
+    }
+
+    if( (this.plays.length > 0) && (this.hasWon() === true)) {
+      return false;
+    } else {
+      this.plays.push(word);
+      return true;
+    }
+  };
+
+  highestScoringWord() {
+    return Scrabble.highestScoreFrom(this.plays);
+  }
+
+  highestWordScore() {
+    return Scrabble.score(Scrabble.highestScoreFrom(this.plays));
+  }
+
 };
 
 module.exports = Scrabble;

spec/scrabble_spec.js

@@ -136,7 +136,7 @@ describe('Player', function() {
       expect(function() { player.play(44); }).toThrow();
       expect(player.plays.length).toBe(0);
     });
-
+//1
     it ('Returns false and does not update plays if the player has already won', function() {
       let player = new Scrabble.Player('test player');
       expect(player.play('zzzzzzz')).toBeTruthy(); // +120 pts
@@ -153,7 +153,7 @@ describe('Player', function() {
       let player = new Scrabble.Player('test player');
       expect(player.totalScore()).toBe(0);
     });
-
+//2
     it ('Is updated by play', function() {
       let player = new Scrabble.Player('test player');
       expect(player.totalScore()).toBe(0);